Apparatus for making reenforced binding material



Nov. 3,1936. D. E. SKEDGELL 2,059,404

APPARATUS FOR MAKING REENFORCED BINDING MATERIAL Original Filed July 25,1934 2 Sheets-Sheet l 11v VENTOR: David 21 filmdgalb,

TTORNEYS.

Nov. 3, 1936. 2,059,404

APPARATUS FOR MAKING REENFORCED BINDING MATERIAL D. E. SKEDGELL 2Sheets-Sheet 2 Original Filed July 23, 1934 MN SW INVENTOR: David E.Shad/gall fl/ TORNEYS. I

WITNESiESg I flgimm Patented Nov. 3, 1936 UNITE STATES APPARATUS FORMAKING REENFORCED BINDING MATERIAL David E. Skedgell, Millville, N. Jassignor to The Millville Manufacturing Company, Millville, N. J acorporation of New Jersey Application July 22, 1934, Serial No. 736,503Renewed February 29, 1936 10 Claims.

This invention relates to apparatus for making, from strip paper,reenforced binding material adapted to be used in binding packages;sealing cartons, etc.

Considered from the broadest aspect, my invention is directed towardfacilitating rapid and economic production of paper binding materialeither of single or double thickness, reenforced by transverse threads,which in the single thickness material are overlaid upon one face of thepaper, and which in the double thickness material are interposed betweenthe two paper strips, a suitable adhesive or cement being employed topermanently incorporate the threads in the binding. 7

The foregoing desideratum I realize, as hereinafter more fullydisclosed, through provision of a simple and reliable apparatus whereina continuous paper strip is rounded to tubular configuration and somaintained for a time during uniform progression thereof in theapparatus; adhesive applied to its outer rounded surface; threadthereupon wrapped about the tubulated strip; and the Wrapped threadssubsequently severed where they are crossed over an interval between thecontiguous edges of a tubulated strip. In the case of the doublethickness material, ,another paper strip synchronously delivered, ispressed into contact with the adhesive coated side of the first stripupon resumption of the latter to its original fiat condition afterhaving received the threads.

Other objects and attendant advantages of this invention will bemanifest from the detailed description following of the attacheddrawings, wherein Fig. I is a view, partly in side elevation andpartlyin longitudinal section, of an apparatus for making reenforced bindingmaterial, conveniently embodying the present improvements.

Fig. II is a cross sectional view taken as indicated by the arrows II-IIin Fig. I, and drawn to a larger scale.

Fig. III is a cross sectional View, likewise on a larger scale, taken asindicated by the arrows III-III in Fig. I, and showing more particularlythe means whereby the threads are wrapped about the paper sheet after ithas been rounded to tubular form.

Fig. IV is a longitudinal sectional view through the means aforesaid,taken as indicated by the arrows IV--IV in Fig. III.

Figs. V, VI and VII are detail cross sectional views taken as indicatedrespectively by the arrows V-V, VI-VI and VII-VII in Fig. IV; and

Fig. VIII is a perspective view of a fragment of package bindingmaterial such as may be produced with the apparatus of my invention.

As herein delineated, the apparatus comprises a rack I (Fig. I) forrotatively supporting a supply roll 2 of continuous strip paper 3. BYmeans later on described, the strip 3 is drawn from the roll 2 to travelhorizontally in the apparatus in the direction indicated by the arrow inFig. I, passing first beneath a transverse spreader rod 4. In itsadvance, the paper strip 3 is rounded to tubular configuration incidentto progression through the circular aperture of a ring 5 supported by astandard 5 as shown in Figs. I and II, the rounding of the paper beingfacilitated by a tapered mandrel l having hooks 8 at its forward end toengage over the spreader rod 4 while itsfull cylindric end extendsthrough the aperture of the ring 5.

The strip 3 after being tubulated, with its side edges upward and spacedby a small interval as at 9 in Figs. II and VII, next traverses acorre-' spondingly configured horizontal guide passage l0 jointlyafforded by a hollow cylindric core II and a surrounding coaxial sleevel2 which is supported in the clamp bearing l3 of a pedestal l4. As shownin Figs. I and II, the core extends beyond both ends of the sleeve, andits aft end terminates in a bevel I5. From Figs. IV and V it will beobserved that the core II is secured to the sleeve I2 by screws [6engaging threaded openings in a longitudinal rib ll on said core whichdefines a segmental annular cross section for the guide passage of acircumferential extent substantially equal to the width of the paperstrip.

Freely rotatable on the sleeve l2 between one face of the bearing E3 ofthe pedestal l4 and a cap l 8 secured by screw bolts l9 to the righthand end of said sleeve (Fig; I), is a winding head 20. As shown, thiswinding head 20 is formed with a pulley 2| which is constantly driven inthe direction of the arrow in Fig. II by a belt 22, from an electricmotor or the like, not illustrated. The cap l8 has an annular hollow 23,which, at the top, communicates with a duct 25 leading longitudinallythrough the fixed sleeve l2. Connecting into the duct 25 at the lefthand end, is a tube or pipe 26 which leads from a storage reservoir 2'!(Fig. I) for liquid adhesive. By means of a gear pump conventionallyshown at 28, the liquid adhesive is constantly drawn from the storagereservoir 21 and conducted to the annular hollow 23 of the cap I8 andfinds its way from the latter through a pair of spaced radial ports 29and 30 (Figs. IV and VI) to a relatively narrow circumferential channel3! formed by an internal counterbore of the inner flange of said cap atthe point where the tubulated portion of the strip 3 emerges from theguide passage l0, said channel having a circumferential extent somewhatless than the width of the paper strip 3. As the winding head 20revolves, the adhesive is evenly smoothed on the outer surface of therounded tubulated paper strip 3 by means of a brush 32 carried by saidhead. A guard or cover plate 33 fashioned from sheet metal and securedto the cap ill, by screws 34 bridges the gap or longitudinal interval 9bee tween the contiguous edges of the tubulated paper strip 3 andslightly overlaps said edges, asshown in Fig. III. This guard or coverplate 33 prevents direct contact of the brush 32 with the portion of themandrel l l between the spaced strip edges, and moreover confines thespread of the adhesive to the outer face of the strip somewhat short ofthe edges of the latter.

Individually mounted for free rotation about circumferentially-spacedradial pins 35 on the head 20 are thread spools 36. From these spools 36the threads T are directed through guide apertures 31 in the pulley 2|to eyes in the ends of a corresponding number of guide fingers 38projecting laterally at suitably spaced circumferential intervals fromthe right hand face of said pulley beyond the brush 32. Accordingly,during rotation of the head 20, and as a consequence of attendantforward progression of the paper strip 3, the threads T are spirallywrapped about the tubulated portion of the strip immediately afterapplication of the adhesive as aforesaid.

In -its further travel, the strip 3 passes through a drying chamber 39which may be heated by a suitable means, not shown, and wherein a sheardevice 40 severs the wrapped threads Y where they extend crosswisebetween the spaced edges of the tubulated paper strip. The shear device40, it will be noted, operates in a longitudinal top slot 4| in the aftend of the core tube H, said slot extending rearward from the region ofthe brush 32, see Figs. IV and VII. The movable blade 42 of the sheardevice 40 is actuated through a suitable linkage means 43 from a rotarycam 45 (see Fig. I) on a continuously rotating shaft 46. This shaft 46may be driven, for example, by a belt connection with the same motor(not illustrated) that serves to drive the winding head.

As the paper strip'leaves the beveled end l5 of the core tube II, itassumes its original fiat form and passes out through a slot 41 in therear wall of the drying chamber 39, to a guide roll 48. Immediatelybeyond the guide roll 48 and slightly below the level thereof is aspreader roll 49. From thence the strip 3 passes about a pair ofvertically-arranged draw rolls 50, 5i beyond and above which is anotherpair of draw rolls 52, 53 which are horizontally arranged, and whereatthe strip 3 meets with a backing strip 55 which is concurrently drawn atsynchronous surface speed from a separate supply roll 56. Enroute to thedraw rolls 52, 53 the paper backing strip 55 is coated with liquidadhesive supplied by a pair of applicator rolls 57, 58 whereof the lowerone runs in a bath 59 of the adhesive. Above the applicator rolls 51,'58, a doctor roll 65 serves to distribute the adhesive on the backingstrip 55 before it reaches the draw rolls 52, 53. Incident to passagethrough the draw rolls the adhesive side'of the supplemental strip 55 isfirmly pressed against the adhesive side of the main strip 3 whereuponthe two are passed around a heated drying drum 5|. The finishedcomposite binding strip 62 is finally collected on a beam 63. Suitablegearing (not illustrated) is of course provided in practice to drive thedraw rolls 52 and 53, the drying drum GI and the beam 63 at like surfacespeeds to prevent either stretching or buckling of the material.

For the fabrication of single thickness binding, the process is simplyterminated after the strip emerges from the drying chamber, the materialbeing passed from thence directly to the draw rolls 52 and 53, andfinally to the collecting beam 63.

If desired or found convenient in practice, the mandrel 1 may be made asan integral part of the core I I without in any way altering thecharacteristic'operation of the apparatus.

Having thus described my invention, I claim:

1. In apparatus for making reenforced binding material, means foruniformly progressing a continuous strip of paper; means forlongitudinally tubulating the strip incident to its progression and formaintaining it for a time in tubular form with its side edges separated,by a small interval, said means affording a relatively narrow segmentalflow channel around the tubulated sheet of a circumferential extentslightly less than the width of the paper strip; means for conductingliquid adhesive to said fiow channel; means for continuously wrappingthread around the tubulated strip after application of the adhesive; andmeans for subsequently severing the thread wrappings where they extendacross the longitudinal interval between the contiguous edges of thetubulated strip.

2. In apparatus for making reenforced binding material, means foruniformly progressing a continuous strip of paper; means forlongitudinally tubulating the strip incident to its progression and formaintaining it for a time in tubular form with its side edges separatedby a small interval, said means affording, around said tubulated stripat the point of its emergence, a narrow segmental flow channel of acircumferential extent slightly less than the width of the strip; meansfor conducting liquid adhesive to said flow channel; means for evenlyspreading the adhesive; means for continuously wrapping thread aroundthe tubulated strip after application and spreading of the adhesive; andmeans for subsequently severing the wrapped threads where they extendacross the longitudinal interval between the contiguous edges of thetubulated strip.

3. In apparatus for making reenforced binding material, means forprogressing a continuous strip of paper; means for longitudinallytubulating the strip incident to its progression and for maintaining itfor a time in tubular form, comprising a fixed sleeve and an axial corewith its ends extending beyond the sleeve, said sleeve and core jointlyproviding a guide passage of segmental annular cross section and of acircumferential extent substantially equal to the width of the tubulatedstrip, said sleeve also affording a segmental annular flow channel ofsomewhat lesser extent than the strip width at the end where thetubulated strip emerges from the guide passage; means for conductingfluid adhesive to the flow channel; means for continuously wrappingreenforcing thread around the tubulated strip after application of theadhesive; and means for subsequently severing the thread wrappings wherethey extend across the longitudinal interval between the contiguousedges of the tubulated strip.

4. In apparatus for making reenforced binding material, means forprogressing a continuous strip of paper; means for longitudinallytubulating the strip incident to its progression and for maintaining itfor a time in tubular form, comprising a fixed sleeve and an axial corewith its ends extending beyond the sleeve, said sleeve and core jointlyproviding a guide passage of segmental angular cross section and of acircumferential extent substantially equal to the width x of thetubulating strip, said sleeve also affording a segmental annular flowchannel of somewhat lesser extent than the strip width at the end wherethe tubulated strip emerges from the guide passage; means for conductingfluid adhesive to the flow channel; means for evenly spreading theadhesive; means for continuously wrapping thread around the tubulatedstrip after application and spreading of the adhesive; and means forsubsequently severing the wrapped threads where they extend across thelongitudinal interval between the contiguous edges of the tubulatedstrip.

5. In apparatus for making reenforced binding material, means forprogressing a continuous strip of paper; means for longitudinallytubulating the strip incident to its progression and. for maintaining itfor a time in tubular form, comprising a fixed sleeve and an axial corewith its ends extending beyond the sleeve, said sleeve and core jointlyproviding a guide passage of segmental annular cross section and of acircumferential extent substantially equal to the width of the tubulatedstrip, said sleeve also affording a segmental annular flow channel ofsomewhat lesser extent than the strip width at the end where thetubulated strip emerges from the guide passage; means for conductingfluid adhesive to the flow channel; means for continuously wrappingreenforcing thread around the tubulated strip after application of theadhesive, including a head revolving on the sleeve, a plurality ofthread spools carried by the head, and a corresponding number of guidesfor directing the threads; and means for subsequently severing thethread wrappings where they extend across the longitudinal intervalbetween the contiguous edges of the tubulated strip.

6. In apparatus for making reenforced binding material, means forprogressing a continuous strip of paper; means for longitudinallytubulating the strip incident to its progression and for maintaining itfora time in tubular form,

comprising a fixed sleeve and an axial core with its ends: extendingbeyond the sleeve, said sleeve and core jointly providing a guidepassage of segmental annular cross section and of a circumferentialextent substantially equal to; the width of the tubulating strip, saidsleeve also affording a segmental annular flow channel of somewhatlesser extent at the end Where the tubulated strip emerges from theguide passage; means for conducting fluid adhesive to the flow channel;means for evenly spreading the adhesive and for continuously wrappingreenforcing thread around the tubulated strip after application andspreading of the adhesive, including a spreader brush, a plurality ofspools for the individual threads, and guide means beyond the brush fordirecting the threads; a fixed cover plate lapping the contiguous edgesof the tubulated strip in the province of the brush; and means forsubsequently severing the thread wrappings where they extend across thelongitudinal interval between the contiguous edges of the tubulatedstrip.

7. In apparatus for making reenforced binding material; means forprogressing a continuous strip of paper; means for longitudinallytubulating the strip incident to its progression and for maintaining itfor a time in tubular form, comprising a fixed sleeve and an axial corewith its ends extending beyond the sleeve, said sleeve and core jointlyproviding a guide passage 01 segmental annular cross section and of acircumferential extent substantially equal to the width of thetubulating strip, said sleeve also afiording a segmental annular flowchannel of somewhat lesser extent than the strip width at the end wherethe tubulated strip emerges from the guide passage; means forcontinuously wrapping reenforcing thread around the tubulated stripafter application of adhesive; and a shear device operating in alongitudinal slot at the aft end of the core member to sever the threadwrappings where they extend across the longitudinal interval between thecontiguous edges of the tubulated strip.

8. In apparatus for making reenforced binding material, means forprogressing a continuous strip of paper; a mandrel and a ring membercooperating to round the strip longitudinally into tubular form; guidemeans for maintaining the strip tubulated for a time; means for applyingadhesive to the strip while maintained in tubulated form; means forcontinuously wrapping reenforcing thread about the tubulated strip afterapplication of the adhesive; and means for subsequently severing thethread wrappings where they extend across the longitudinal intervalbetween the contiguous edges of the tubulated strip.

9. In apparatus for making reenforced binding material, means foruniformly progressing a continuous strip of paper; means forlongitudinally tubulating the strip incident to its progression and formaintaining it for a time in tubular form with its side edges separatedby a small interval, said means affording a narrow segmental annularflow channel of a circumferential extent slightly less than the stripwidth around the tubulated strip; means for conducting liquid adhesiveto said flow channel; means for continuously wrapping thread around thetubulated strip after application of the adhesive; means forsubsequently severing the thread wrappings where they extend across thelongitudinal interval between the contiguous edges of the tubulatedstrip; and means for advancing a second paper strip at a synchronousspeed and applying it over the adhesive side of the first strip afterthe latter has resumed its original fiat condition.

10. In apparatus for making reenforced binding material, means foruniformly progressing a continuous strip of paper; means forlongitudinally tubulating the strip incident to its progression and formaintaining it for a time in tubular form with its side edges separatedby a relatively narrow interval, said means affording a narrow segmentalflow channel of a circumferential extent slightly less than the stripwidth around the tubulated strip; means for conducting liquid adhesiveto said flow channel; means for continuously wrapping thread around thetubulated strip after application of the adhesive; means forsubsequently severing the thread wrappings where they extend across thelongitudinal interval between the contiguous edges of the tubulatedstrip; means for drying the strip; means for continuously advancing asecond paper strip at a synchronous speed; means for applying adhesiveto one side of the second strip; and means for pressing the adhesivecoated side of the second strip into contact with the adhesive coatedside of the first strip after the latter has resumed its original fiatcondition.

DAVID E. SKEDGELL.

